What IPv6 method assigns addresses without a server?

• A. DHCPv6
• B. SLAAC
• C. NAT64
• D. DNS64

Answer: (B)

SLAAC enables devices to configure their own IPv6 addresses without a dedicated server. In this approach, routers periodically advertise a network prefix via Router Advertisements. A host uses that prefix, along with an interface identifier (which can be derived from the device’s MAC address or generated randomly), to generate its own globally unique IPv6 address. Since the address is formed locally based on the advertised prefix, no central server is required to assign it.

DHCPv6 would involve a server assigning addresses and other configuration, so it isn’t the method that assigns addresses without a server. NAT64 is a translation mechanism between IPv6 and IPv4, not an address assignment method. DNS64 is a DNS-based mapping technique used to synthesize IPv6 addresses from IPv4 results, and it doesn’t assign host addresses either.